diff --git a/app/views/users/_homework_repository_list.html.erb b/app/views/users/_homework_repository_list.html.erb
index 5b0053a50..33de70c24 100644
--- a/app/views/users/_homework_repository_list.html.erb
+++ b/app/views/users/_homework_repository_list.html.erb
@@ -8,7 +8,7 @@
       <div class="fl ">
         <h3 class="sy_classlist_title fl">
           <% if type == "1" %>
-              <%=link_to homework.name, student_work_index_path(:homework => homework), :class => 'hw_cgrey', :target => "_blank" %>
+              <%=link_to homework.name, student_work_index_path(:homework => homework), :class => 'linkGrey5', :target => "_blank" %>
           <% else %>
               <%=homework.name %>
           <% end %>
diff --git a/public/stylesheets/css/common.css b/public/stylesheets/css/common.css
index 47313265a..bf37bf3a4 100644
--- a/public/stylesheets/css/common.css
+++ b/public/stylesheets/css/common.css
@@ -429,7 +429,7 @@ a.linkGrey3:hover {color:#000000;}
 a.linkGrey4 {color:#484848;}
 a.linkGrey4:hover {color:#297fb8;}
 a.linkGrey5 {color:#484848;}
-a.linkGrey5:hover {color:#3498db;}
+a.linkGrey5:hover {color:#3498db !important;}
 a.linkGrey6 {color:#484848 !important;}
 a.linkGrey6:hover {color:#ffffff !important;}
 a.linkGrey7 {color:#888888;}
@@ -452,27 +452,6 @@ a.submit_btn2:hover {background-color:  #297fb8;}
 .wlist_select a { background-color:#48aac9; color:#fff;}
 
 /*add by Tim*/
-a.linkBlue {color:#269ac9;}
-a.linkBlue:hover {color:#297fb8;}
-a.buttonBlue {background-color:#269ac9;}
-a.buttonBlue:hover {background-color:#297fb8;}
-a.linkGrey {color:#484848;}
-a.linkGrey:hover {color:#269ac9;}
-
-a.bBlue {background-color:#3498db;}
-a.bBlue:hover {background-color:#297fb8;}
-.fontGrey {color:#cecece;}
-.fontGrey2 {color:#888888;}
-a.linkBlue2 {color:#3498db;}
-a.linkBlue2:hover {color:#297fb8;}
-a.linkOrange {color:#ff7143;}
-a.linkGrey2 {color:#888888;}
-a.linkGrey2:hover {color:#484848;}
-a.linkGrey4 {color:#484848;}
-a.linkGrey5 {color:#484848;}
-a.linkGrey5:hover {color:#3498db;}
-a.submit_btn {border:1px solid #3498db; padding:3px 10px; border-radius:3px; color:#3498db;}
-a.submit_btn:hover {background-color:#3498db; color:#ffffff;}
 input.submit_btn {border:1px solid #3498db; padding:3px 10px; border-radius:3px; color:#3498db;}
 input.submit_btn:hover {background-color:#3498db; color:#ffffff;}
 a.yellowBtn{ display:inline-block;color:#0d90c3; height:22px;}